Pixverse Transition API

PixVerse V4 transforms static images and text into dynamic, visually stunning videos for creators across various industries.

PlaygroundAPIPricing
~57.65s
POST /v2/pixverse-transition · submit + poll
 1# pip install "segmind>=1.1.0"
 2# export SEGMIND_API_KEY="YOUR_API_KEY"
 3from segmind import SegmindClient, InferenceFailed, InferenceTimeout
 4
 5# Async (v2) — recommended for long-running / video models.
 6# run() blocks up to 600s; submit_async + job.wait(timeout=...) sets a longer
 7# deadline and keeps the request_id so you can re-poll later.
 8client = SegmindClient()                      # reads SEGMIND_API_KEY
 9payload = {
10    "first_frame_url": "https://segmind-inference-inputs.s3.amazonaws.com/e900af97-db46-406d-8403-71210db253c4-pixverse-4.5-transition-first-frame-input.webp",
11    "last_frame_url": "https://segmind-inference-inputs.s3.amazonaws.com/a5e271e3-e37b-4426-a572-06b514319a4c-pixverse-4.5-transition-last-frame-input.webp",
12    "duration": 8,
13    "prompt": "Butterflies fluttering in a sunny meadow.",
14    "quality": "720p",
15    "seed": 12345,
16    "motion_mode": "normal",
17}
18job = client.submit_async("pixverse-transition", **payload)
19print(job.request_id)                         # available immediately
20try:
21    result = job.wait(timeout=900, interval=2.0)
22    print(result["status"])                  # COMPLETED
23    print(result.get("output"))              # model output (e.g. video URL)
24except InferenceTimeout as e:
25    print("still running:", e.request_id)    # re-poll later with this id
26except InferenceFailed as e:
27    print("failed:", e.detail)
28
29# Fast models (<=600s) can use the one-liner instead:
30# result = segmind.run("pixverse-transition", **payload)

API Endpoint

POSThttps://api.segmind.com/v1/pixverse-transition

Parameters

durationrequired
integer

Video length in seconds. Choose 5 for quick previews, 8 for detailed animations.

Default: 8
Allowed values :
58
first_frame_urlrequired
string (uri)

URL for the starting image. Use high-quality images for better transitions.

Default: "https://segmind-inference-inputs.s3.amazonaws.com/e900af97-db46-406d-8403-71210db253c4-pixverse-4.5-transition-first-frame-input.webp"
last_frame_urlrequired
string (uri)

URL for the ending image. High-quality images enhance visual transitions.

Default: "https://segmind-inference-inputs.s3.amazonaws.com/a5e271e3-e37b-4426-a572-06b514319a4c-pixverse-4.5-transition-last-frame-input.webp"
motion_moderequired
string

Animation motion style. 'Normal' is smooth, 'fast' is rapid.

Default: "normal"
Allowed values :
"normal""fast"
promptrequired
string

Animation theme description. Try thematic prompts for creative animations.

Default: "Butterflies fluttering in a sunny meadow."
qualityrequired
string

Video resolution. Use 1080p for high quality, 360p for fast previews.

Default: "720p"
Allowed values :
"360p""540p""720p""1080p"
seedoptional
integer

Seed for repeat results. Change for unique animations.

Default: 12345Range: 1 - 999999

Response Type

Returns: Video

Asynchronous requests (v2)

Use Async for video, long-running (>~60s), or high-concurrency workloads; Sync is simplest for fast image & LLM calls. Async submits a request and you poll it to completion.

  1. 1
    POST /v2/pixverse-transition

    Submit — returns request_id, status_url, response_url

  2. 2
    GET /v2/requests/{id}/status

    Poll — until COMPLETED or FAILED

  3. 3
    GET /v2/requests/{id}

    Result — final response body

Status states

QUEUED— Accepted, waiting for a worker
PROCESSING— Running on a worker
COMPLETED— Done — result body is ready
FAILED— Errored (incl. content/RAI blocks)
  • A FAILED request is served as HTTP 422 — the body still carries the error detail.
  • An unknown or expired request_id returns HTTP 404.
  • Results are retained for 1 hour, then expire.
  • Content / RAI blocks surface as FAILED, not a separate state.
  • Track completion by polling the status endpoint.

Common Error Codes

The API returns standard HTTP status codes. Detailed error messages are provided in the response body.

400

Bad Request

Invalid parameters or request format

401

Unauthorized

Missing or invalid API key

403

Forbidden

Insufficient permissions

404

Not Found

Model or endpoint not found

406

Insufficient Credits

Not enough credits to process request

429

Rate Limited

Too many requests

500

Server Error

Internal server error

502

Bad Gateway

Service temporarily unavailable

504

Timeout

Request timed out